Paper is one of the most famous Chinese inventions. It is widely accepted that
paper was invented by Cai Lun in the Eastern Han. However, the archaeologists
have discovered paper of Western Han such as "Fang-ma-tan" paper, "Ba-quao"
paper, "Xuan-quan" paper, "Ma-quan-wan" paper, "Ju-yan" paper and "Han-tan-po"
paper.